Avoidant and ambivalent attachment patterns also have different adaptive values for boys and girls, in the context of same - sex competition in the peer group: in particular, the competitive and
aggressive traits related to avoidant attachment can be favored as a status - seeking strategy for males.
Moreover, factors such as age of CD onset, impulsivity, and callous - unemotional
traits, separately, have been
related to these different types of
aggressive behaviors.